Question: what is the {start time} for {Tilda Swinton} which has {partner} as {John Byrne} ?
Paraphrase: what is the {begin time} for {Tilda Swinton} which has {accomplice} as {John Byrne} ?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q200534 p:P451 ?s . ?s ps:P451 wd:Q6224236 . ?s pq:P580 ?value}